Absorption: The entry of a chemical or nutrient into the plant.
Acid Soil: A soil whose pH is less than 7.
Aeration (Soil): The exchange of air between the soil and the atmosphere.
Alkaline Soil: Soil whose pH is more than 7.
Annual Plant: A plant completing its normal growth cycle in one year or less.
Annual, Winter: A plant that begins growth in the fall; survives over winter, flowers and produces seed and dies the following season.
Biennial: A plant whose normal growth cycle spans two growing seasons. Many biennials produce roots and a cluster of leaves near the surface of the ground the first year; flower, produce seed and die the second year.
Blade (Leaf): The flattened portion of the leaf projecting outward from the main shoot axis and located above the sheath.
Blend (Seed): A combination of two or more varieties (cultivars) of a single turfgrass species.
Broadcast Application: Uniform distribution of a pesticide or fertilizer over an entire area.
Broadleaf: A term applied to non grass-like plants; typically used in context of weed control. Examples include dandelion and white clover.
Broadleaf Herbicide: A weed killer designed specifically to kill broadleaf plants.
Bermuda: Species of coarse grass used in hot climates.